Mixed Metal Oxides (MMO) Coated Tubular Anode
The Mixed Metal Oxides (MMO) Coated Tubular Anode is a high-performance titanium-based anode designed for long-term use in cathodic protection systems, particularly in deep well and marine environments. Featuring a precision-applied MMO catalyst layer primarily composed of ruthenium and iridium oxides, this anode provides excellent conductivity, corrosion resistance, and electrochemical stability. It is widely used in industries requiring reliable protection of buried or submerged metallic assets.
| Base Material | Titanium Tube (ASTM B338 Grade 1 or 2) |
|---|---|
| Standards | ASTM B338, NACE RP0187 |
| Outer Diameter | 25.4 mm (1″), 31.75 mm (1.25″), or custom |
| Offshore & Coastal | Jetties, risers, subsea pipelines |
Details about Mixed Metal Oxides (MMO) Coated Tubular Anode
Product Details
Size & Application
How to order
Video
Product Details
MMO Coated Tubular Anodes – High-performance, durable anodes designed for cathodic protection, offshore structures, industrial facilities, and deep anode bed systems. Featuring a seamless titanium tube core with a highly stable mixed metal oxide (MMO) coating, these anodes deliver superior efficiency, minimal consumption, and exceptional longevity even in harsh environments.
🌟 Why Choose MMO Coated Tubular Anodes?
- ⚡ High Anodic Efficiency: Ensures excellent current distribution for uniform protection of pipelines, tanks, and marine structures.
- 🛡️ Long Service Life: MMO coatings exhibit extremely low consumption rates, lasting 25+ years under proper design and operation.
- 🌊 Harsh Environment Resistance: Stable in seawater, brine, acidic soils, and chloride-rich electrolytes.
- 🔧 Customizable Design: Diameters, lengths, cable types, and optional centralizers tailored to project requirements.
- 💰 Cost-Efficient: Low maintenance and reduced replacement frequency lower total operating costs.
⚙️ Technical Features & Manufacturing Standards
Our MMO tubular anodes are manufactured in strict accordance with international standards including ASTM B338 and NACE RP0187. Fully sealed cable connections, optional centralizers, and vent pipes make installation straightforward in vertical or horizontal groundbeds. Suitable for deep anode system applications and high-current ICCP operations.
📋 Specifications
| Item | Specification |
|---|---|
| Base Material | Titanium Tube (ASTM B338 Grade 1 or 2) |
| Coating Composition | Mixed Metal Oxides (RuO₂ + IrO₂ + optional Ta₂O₅) |
| Outer Diameter | 25.4 mm (1″) / 31.75 mm (1.25″) / Customized |
| Wall Thickness | 1.0–1.2 mm |
| Length | 1000, 1500, 2000 mm or custom |
| Current Rating | 50–60 A/m² (varies with environment) |
| Service Life | Up to 25+ years depending on design and operating current density |
| Environment | Soil, freshwater, seawater, brine, acidic conditions |
| Connection Type | Sealed cable with industrial epoxy resin; optional pre-attached copper core |
🌍 Application Scenarios
- ⛏️ Deep Well Groundbeds: Protect long-distance pipelines, underground storage tanks, and buried infrastructure.
- 🌊 Offshore & Coastal Structures: Jetties, wharfs, risers, subsea pipelines exposed to seawater and high salinity.
- 🔌 Buried Pipelines & Cables: Ensure consistent ICCP system operation for critical infrastructure.
- 🏭 Industrial Facilities: Chemical plants, refineries, and power stations with corrosive soil environments.
- 🛢️ Above-Ground Storage Tanks: Protect tank bottoms using vertical deep well anodes.
🔹 Key Advantages
- 🕒 Long-Lasting Coating: Extremely low MMO consumption; designed for 25+ years of service life.
- ⚡ High Output Capability: Efficient performance in high-current density applications.
- 🛡️ Harsh Environment Stability: Resistant to acidic, saline, or chloride-rich soils and liquids.
- 🔧 Custom Assemblies: Centralizers, vent pipes, pre-attached cables available for tailored installation.
- 🧰 Low Maintenance: Titanium substrate remains dimensionally stable; no degradation over lifetime.
- 🌱 Environmentally Friendly: Coating does not leach harmful substances; meets green protection standards.
🏭 Production Process Overview
The production of MMO Coated Tubular Anodes follows a rigorous, multi-step process to ensure consistent quality, durability, and electrochemical performance:
- Titanium Tube Selection & Preparation: High-purity tubes (ASTM B338 Grade 1/2) undergo dimensional inspection, acid pickling, and degreasing to remove oxides and contaminants.
- Surface Treatment: Sandblasting or chemical etching enhances coating adhesion, critical for longevity.
- MMO Coating Application: Proprietary solution containing Ru, Ir, and optional Ta compounds is applied in multiple layers with controlled brushing or spraying.
- Thermal Curing: Each layer is oxidized in high-temperature ovens to form a durable conductive ceramic coating. Process repeated until target load achieved.
- Quality Inspection: Coating adhesion, thickness, uniformity, and electrochemical performance are verified using non-destructive tests.
- Cable Attachment & Assembly (Optional): Copper-core cables sealed with industrial epoxy; centralizers and spacers installed as needed.
- Packaging & Shipment: Moisture-resistant wrapping, reinforced crates; each unit labeled with unique serial number for traceability.
📝 How to Order
To place an order, please provide:
- Anode dimensions (diameter, length) and quantity
- Operating environment and expected current density
- Required accessories: centralizers, vent pipes, pre-attached cables
Typical lead time: 10–20 working days, depending on customization and order volume.
❓ FAQ
Click to expand FAQ 📖
- Q1: What is the expected lifetime of MMO tubular anodes?
A1: Typically 25+ years under proper design and ICCP system operation. - Q2: Can these anodes be used in seawater or acidic soils?
A2: Yes, MMO coatings are highly resistant to saline, chloride-rich, or acidic environments. - Q3: Are custom lengths and diameters available?
A3: Absolutely; anodes can be tailored for project-specific requirements. - Q4: What type of cable connections are provided?
A4: Sealed epoxy resin connections; optional pre-attached copper cables. - Q5: Is technical support available?
A5: Yes, we provide consultation for design, installation, and operation of ICCP systems.
Size & Application
| Item | Specification |
|---|---|
| Base Material | Titanium (ASTM B338 Grade 1 or 2) |
| Coating Composition | Mixed Metal Oxides (RuO₂ + IrO₂ + optional Ta₂O₅) |
| Outer Diameter | 25.4 mm (1″) / 31.75 mm (1.25″) / Customized |
| Wall Thickness | 1.0 mm – 1.2 mm |
| Length | 1000 mm, 1500 mm, 2000 mm or per request |
| Current Rating | Typically 50–60 A/m² (can vary by environment) |
| Service Life | Up to 25+ years (based on design current density) |
| Environment | Soil, freshwater, seawater, brine, acidic conditions |
| Connection Type | Sealed cable connection with waterproof epoxy resin |
How to order
How to Order
To ensure we provide the most suitable Mixed Metal Oxides (MMO) Coated Tubular Anode for your application, please include the following information in your inquiry or purchase order:
Required Quantity – Number of anodes or total meter length
Outer Diameter & Length – Standard sizes or custom dimensions
Operating Environment – Soil, seawater, brine, freshwater, etc.
Design Current Output – Target amperage or system load
Service Life Requirement – Expected operational lifespan
Connection Type – Bare anode or with cable assembly (please specify cable size and length)
Accessories (if any) – Centralizers, vent pipes, spacers, etc.
Shipping Destination – Full delivery address and Incoterms preference
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